321645780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{409}}^1$

素因数の和:698

約数の個数: 144

約数和(自身を含む): 1039605840

約数和(自身を除く): 717960060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 257, 306, 340, 409, 510, 514, 612, 765, 771, 818, 1020, 1028, 1227, 1285, 1530, 1542, 1636, 2045, 2313, 2454, 2570, 3060, 3084, 3681, 3855, 4090, 4369, 4626, 4908, 5140, 6135, 6953, 7362, 7710, 8180, 8738, 9252, 11565, 12270, 13107, 13906, 14724, 15420, 17476, 18405, 20859, 21845, 23130, 24540, 26214, 27812, 34765, 36810, 39321, 41718, 43690, 46260, 52428, 62577, 65535, 69530, 73620, 78642, 83436, 87380, 104295, 105113, 125154, 131070, 139060, 157284, 196605, 208590, 210226, 250308, 262140, 312885, 315339, 393210, 417180, 420452, 525565, 625770, 630678, 786420, 946017, 1051130, 1251540, 1261356, 1576695, 1786921, 1892034, 2102260, 3153390, 3573842, 3784068, 4730085, 5360763, 6306780, 7147684, 8934605, 9460170, 10721526, 16082289, 17869210, 18920340, 21443052, 26803815, 32164578, 35738420, 53607630, 64329156, 80411445, 107215260, 160822890, 321645780]

約数ペア:

[(1, 321645780), (2, 160822890), (3, 107215260), (4, 80411445), (5, 64329156), (6, 53607630), (9, 35738420), (10, 32164578), (12, 26803815), (15, 21443052), (17, 18920340), (18, 17869210), (20, 16082289), (30, 10721526), (34, 9460170), (36, 8934605), (45, 7147684), (51, 6306780), (60, 5360763), (68, 4730085), (85, 3784068), (90, 3573842), (102, 3153390), (153, 2102260), (170, 1892034), (180, 1786921), (204, 1576695), (255, 1261356), (257, 1251540), (306, 1051130), (340, 946017), (409, 786420), (510, 630678), (514, 625770), (612, 525565), (765, 420452), (771, 417180), (818, 393210), (1020, 315339), (1028, 312885), (1227, 262140), (1285, 250308), (1530, 210226), (1542, 208590), (1636, 196605), (2045, 157284), (2313, 139060), (2454, 131070), (2570, 125154), (3060, 105113), (3084, 104295), (3681, 87380), (3855, 83436), (4090, 78642), (4369, 73620), (4626, 69530), (4908, 65535), (5140, 62577), (6135, 52428), (6953, 46260), (7362, 43690), (7710, 41718), (8180, 39321), (8738, 36810), (9252, 34765), (11565, 27812), (12270, 26214), (13107, 24540), (13906, 23130), (14724, 21845), (15420, 20859), (17476, 18405)]